Assessment of the effects of electromagnetic field modification on egg-laying hens in commercial flocks as indicated by production measures.
Autor: | Keirs, Robert W.1, Peebles, Edgar D.2, Sarjeant, Walter J.3, Gerard, Patrick D.4, Terner, Jonathan A.5 |
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Zdroj: | American Journal of Veterinary Research. Aug2005, Vol. 68 Issue 8, p1425-1429. 5p. 2 Graphs. |
Databáze: | Academic Search Ultimate |
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